Effect of nitrogen fertilization on yield, storage losses and chemical composition of winter cabbage

1991 ◽  
Vol 71 (3) ◽  
pp. 943-946 ◽  
Author(s):  
S. Freyman ◽  
P. M. Toivonen ◽  
W. C. Lin ◽  
P. W. Perrin ◽  
J. W. Hall
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Key Words ◽  
Nitrogen Fertilization ◽  
N Fertilization ◽  
Nitrogen Rate ◽  
N Application ◽  
Storage Losses ◽  
White Cabbage ◽  
Brassica Oleracea L

Increasing rates of field nitrogen (N) application (0, 100, 200, 300, 400 and 500 kg N ha−1) resulted in markedly higher yields of winter white cabbage (Brassica oleracea L. var. capitata 'Bartolo') due to larger head size. Glucose and fructose contents increased with increased nitrogen. In contrast, ascorbic acid and sucrose contents declined slightly with increased nitrogen. Nitrogen rate had little effect on storage losses. The results indicated that increased N fertilization provided overall benefit to cabbage production. Key words: Cabbage, nitrogen fertilization, storage losses, yield

scholarly journals The effect of nitrogen fertilization on root distribution of winter wheat

2011 ◽  
Vol 52 (No, 7) ◽  
pp. 308-313 ◽  
Author(s):  
P. Svoboda ◽  
J. Haberle
Keyword(s):  
Winter Wheat ◽  
Nitrogen Fertilization ◽  
Soil Layer ◽  
Triticum Aestivum L ◽  
Fertilization Rate ◽  
N Fertilization ◽  
Rooting Depth ◽  
Nitrogen Rate ◽  
Soil Layers ◽  
N Treatment

The effect of nitrogen fertilization on root length (RL) distribution of winter wheat (Triticum aestivum L.) was investigated. The study was conducted in Prague-Ruzyne on clay loam Chernozemic soil in the years 1996–2003. Two (N0, N1) and three (N0, N1, N2) treatments, unfertilized (N0), fertilized with 100 kg (N1) and 200 kg N/ha (N2) were studied in 1996–2000 and 2001–2003, respectively. Nitrogen rate 100 kg/ha had no effect on RL in soil layers (P > 0.1) in years 1996–2000 and 2002–2003 and there was not significant interaction between N treatment and soil layer except for year 1998 (P < 0.01). Nitrogen fertilization affected RL distribution significantly (P = 0.013) only in 2001 due to reduction of root growth in subsoil layers in treatment N2 (200 kg N/ha) in comparison with N0 and N1. The effect of N fertilization on total RL in rooted soil volume was insignificant. There was a significant effect of year on total RL (P < 0.01) but not of interaction of year and N treatment. Roots reached, with the exception of two years, the depth between 100 and 130 cm. Nitrogen fertilization (N1) had no effect (P = 0.59) on rooting depth (RD) in years 1996–2000 but there was a significant effect of interaction between year and N fertilization on RD (P < 0.01). In the second experimental series (2001–2003) N fertilization rate 200 kg N/ha significantly reduced maximum RD (P < 0.01) in comparison with N0 and N1. The year had highly significant effect on RD.

EFFECTS OF ANNUAL RATE AND TIMING OF N FERTILIZATION ON PRODUCTION OF TIMOTHY, BROMEGRASS, AND REED CANARYGRASS

1981 ◽  
Vol 61 (3) ◽  
pp. 619-623 ◽  
Author(s):  
P. NARASIMHALU ◽  
W. N. BLACK ◽  
K. A. WINTER ◽  
K. B. McRAE
Keyword(s):  
Nitrogen Fertilization ◽  
N Fertilization ◽  
Early Spring ◽  
Early Summer ◽  
Split Application ◽  
Forage Crops ◽  
Reed Canarygrass ◽  
N Application ◽  
Nitrogen Treatments ◽  
Forage Yields

The effects of rate and time of N fertilization in the presence of sufficient P and K on seasonal and annual forage yields were studied on timothy, bromegrass, and reed canarygrass for 4 yr. Nitrogen treatments consisted of a control (receiving no N) and two to four split applications of N at the annual rates of 169, 225 and 280 kg N/ha. The annual rates of N application increased spring production of timothy but did not affect the seasonal and annual yields of the other crops. A split application of a portion of 225 or 280 kg N/ha in early summer instead of mid-summer increased timothy production during that season. Bromegrass production in spring was increased with an early spring application of a portion of the annual N rate of 280 kg/ha. Reed canarygrass production was not affected by split treatments of N. Nitrogen fertilization reduced white clover populations in the fields of timothy and reed canarygrass and of broad-leafed weed populations in all the forage crops.

scholarly journals ACÚMULO DE FITOMASSA DO MILHO APÓS O ESPIGAMENTO EM FUNÇÃO DO PARCELAMENTO DA COBERTURA NITROGENADA

2019 ◽  
Vol 18 (1) ◽  
pp. 61-73
Author(s):  
LUIS SANGOI ◽  
FERNANDO PANISON ◽  
MURILO MIGUEL DURLI ◽  
LUCIELI SANTINI LEOLATO ◽  
ANTONIO EDUARDO COELHO ◽  
...  
Keyword(s):  
Zea Mays ◽  
Nitrogen Fertilization ◽  
Grain Filling ◽  
Dry Mass ◽  
N Fertilization ◽  
Growth Stages ◽  
Nitrogen Rate ◽  
South Of Brazil ◽  
Mass Accumulation

RESUMO – O fracionamento da adubação nitrogenada é uma estratégia que pode aumentar o acúmulo de massa nosgrãos do milho. Este trabalho objetivou avaliar os efeitos do parcelamento da cobertura nitrogenada sobre o acúmulode fitomassa nas folhas, colmos e grãos após o espigamento do milho. O experimento foi implantado em Lages-SC.Foram testados dois híbridos (P30F53YH e P1680YH) e seis sistemas de aplicação do nitrogênio: testemunha semN, todo N aplicado em V5, V10 ou VT (pendoamento), ½ N em V5 + ½ N em V10, 1/3 N em V5 + 1/3 N em V10 +1/3 N em VT. A dose de N foi de 300 kg ha-1. Avaliou-se o acúmulo de fitomassa aos 0, 14, 28, 42, 56 e 70 dias apóso espigamento. A massa seca dos grãos dos dois híbridos aumentou linearmente em todos os sistemas testados. Asmaiores taxas de incremento (2,4 a 2,7 g dia-1) foram obtidas com a aplicação integral de N em V5 e as menores (1,5a 1,6 g dia-1) na testemunha. O fracionamento da adubação nitrogenada de cobertura em três estádios fenológicos nãoaumentou a massa dos grãos, em relação à fertilização feita integralmente em V5 ou V10.Palavras-chave: Zea mays, enchimento de grãos, cultivares, fenologia, nitrogênio. MAIZE DRY MASS ACCUMULATION AFTER SILKING AS AFFECTEDBY THE SPLITTING OF NITROGEN SIDE-DRESS FERTILIZATIONABSTRAT- The splitting of nitrogen fertilization is a strategy that can increase kernel dry mass accumulation of maize.This work was carried out aiming to evaluate the effects of splitting nitrogen side-dress fertilization on leaf, stem andgrain dry mass accumulation after maize silking. The experiment was set in Lages, SC, South of Brazil. Two hybrids(P30F53YH and P1680YH) and six nitrogen fertilization systems were tested: control without N, all N side-dressed atV5, V10 or VT (tasseling), ½ N at V5 + ½ N at V10, 1/3 N at V5 + 1/3 N at V10 + 1/3 N at VT. Nitrogen rate was 300kg ha-1. Dry mass accumulation was determined at 0, 14, 28, 42, 56 and 70 days after silking. The kernel dry mass ofboth hybrids increased linearly at all six N fertilization systems. The highest increment rates (2.4 to 2.7 g day-1) wereachieved when all N was side-dressed at V5. The lowest rates (1.5 to 1.6 g day-1) were registered in the control. Thesplitting of nitrogen side-dress fertilization in three growth stages did not increase kernel dry mass, when compared tothe fertilization carried out entirely at V5 or V10.Keywords: Zea mays, grain filling, hybrids, phenology, nitrogen.

scholarly journals Grazing height and nitrogen fertilization strategy in black oat/maize succession

2021 ◽  
Vol 42 (4) ◽  
pp. 2539-2554
Author(s):  
Felipe Luiz Chiamulera Deifeld ◽  
◽  
André Brugnara Soares ◽  
Daniel Schmitt ◽  
Tangriani Simioni Assmann ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Block Design ◽  
Average Daily Gain ◽  
Grazing Intensity ◽  
N Fertilization ◽  
Pasture Management ◽  
Pasture Production ◽  
N Application ◽  
Randomized Block Design ◽  
Grain Crop

This study was developed to examine the effect of combining nitrogen (N) fertilization strategies and pasture management heights on animal and grain production in an Integrated Crop-Livestock System. The experiment was carried out in the municipality of Abelardo Luz - SC, Brazil, between April 2017 and April 2018. A randomized-block design was adopted, with the treatments arranged in a 2×2 factorial arrangement with three replicates. The first factor was the height of the pasture managed under continuous grazing: high (HH, 20 cm) or low (LH, 12 cm). The second factor corresponded to the N application times: in the winter, in the pasture (NP), and in the summer, in the grain crop (NG), in a single N rate of 200 kg ha-1 as topdressing. The forage species used during the pasture phase was black oat (Avena strigosa Schreb), and the pasture was grazed by Nellore × Charolais crossbred steers with an initial body weight of 260 kg. The summer crop was maize (Zea mays). Average daily gain (ADG) and herbage allowance were higher in HH than in LH, whereas animal load was higher in HH. Between the N application times, the animal load was higher in NP. Pasture management height and N fertilization strategy did not affect the variables of number of rows per ear, number of grains per row, thousand-grain weight, or total grain yield, which overall averaged 14,090 kg ha-1. In conclusion, the inversion of nitrogen fertilization between the periods of winter pasture production and grain crop and the management height of the black oat pasture do not compromise the production of maize grains in the summer, or animal production per area. However, steer performance is greater (higher ADG) when the pasture is managed at 20 cm, whereas a high grazing intensity significantly reduces straw on the soil.

EFFECTS OF DATES OF SEEDING AND LEVELS OF N FERTILIZATION ON YIELDS, CHEMICAL COMPOSITION AND IN VITRO DIGESTIBILITY OF FORAGE KALE

1976 ◽  
Vol 56 (1) ◽  
pp. 63-70 ◽  
Author(s):  
G. PELLETIER ◽  
J. P. F. DARISSE ◽  
E. DONEFER
Keyword(s):  
Chemical Composition ◽  
Brassica Oleracea ◽  
Crude Protein ◽  
Dry Matter ◽  
N Fertilization ◽  
In Vitro Digestibility ◽  
Whole Plants ◽  
Different Levels ◽  
Brassica Oleracea L

Forage kale (Brassica oleracea L.) was seeded on three dates and fertilized at different levels of N as NH4NO3 for 3 yr. The highest dry matter (DM) yield was obtained with the earliest date of seeding and with levels of N fertilization of 120 kg/ha. The yield of crude protein (CP) was relatively constant among years, for the different dates of seeding and for N fertilization above 120 kg/ha. Increasing N fertilization or delaying seeding increased the leaf:stem ratio, and consequently the CP content. The levels of NO3-N in stems, leaves and whole plants were at an acceptable level for safe feeding. The cellulose, crude fiber, Ca and P contents were not affected greatly either by the dates of seeding or by the levels of N fertilization. The in vitro DM digestibility (IVDMD) was not affected markedly by any treatment.

scholarly journals Formulation, Preparation and Preservation of Lemon (Citrus limon L.) Cordial

1970 ◽  
Vol 16 ◽  
pp. 125-127 ◽  
Author(s):  
MOH Helali ◽  
M Ibrahim ◽  
MZ Shafique ◽  
MM Rahman ◽  
SK Biswas ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Citric Acid ◽  
Chemical Composition ◽  
Vitamin C ◽  
Ambient Temperature ◽  
Key Words ◽  
Storage Conditions ◽  
Reducing Sugar ◽  
Citrus Limon ◽  
Keeping Quality

Lemon cordial was prepared and its storage conditions were studied. The prepared cordial was kept in 250 ml sterilized glass bottles, sealed and stored at ambient temperature (22°- 37°C) for 360 days. The chemical composition, keeping quality and consumers acceptability of the product was analyzed at an interval of 15 days up to 120 days and then at an interval of 30 days upto360 days. Except vitamin C content, no noticeable change was observed during the storage. Key words: Lemon, Cordial, Citric acid, Ascorbic acid, Reducing sugar, Non-reducing sugar   DOI:10.3329/jbs.v16i0.3755 J. bio-sci. 16: 125-127, 2008

Response of mint species to nitrogen fertilization

1989 ◽  
Vol 113 (2) ◽  
pp. 267-271 ◽  
Author(s):  
V. P. Singh ◽  
B. N. Chatterjee ◽  
D. V. Singh
Keyword(s):  
Nitrogen Fertilization ◽  
Oil Content ◽  
Oil Quality ◽  
N Fertilization ◽  
Mentha Arvensis ◽  
Fertilizer Rate ◽  
N Application ◽  
Area Index ◽  
Japanese Mint ◽  
Response Equation

SUMMARYHerbage and oil yields of Mentha arvensis (Japanese mint), M. piperita (peppermint) and M. spicata (spearmint) increased significantly with N fertilization up to 100 kg N/ha and those of M. citrata (bergamot mint) with up to 150 kg N/ha. Plant height, leaf: stem ratio and leaf area index increased with N application; and oil content decreased in all the species. Economic optimum doses of N for M. arvensis, M. piperita and M. spicata were 167, 153 and 145 kg N/ha, respectively and their oil yields expected from the response equation were 190, 103 and 50 kg/ha, respectively. The calculated optimum fertilizer rate for M. citrata was 225 kg N/ha, giving a yield of 193 kg oil/ha. Oil quality did not vary appreciably with N fertilization.

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